اسم ( noun )• (1) تعریف: the act, process, or method of tracing words or designs in the sky with a visible chemical vapor released from an airplane in flight.• (2) تعریف: the designs or words thus produced, usu. for advertising or publicity.
act of using special smoke released from an aircraft to write words in the skyآسمان نویسی+ عکس و لینک